Rose plant Jacyo

ABSTRACT

A hybrid tea rose variety having thick, high substance petals of unusual orange-red color with a pale yellow and orange reverse combined with mildew resistance, outstanding vigor and continual blooming.

This present invention relates to a new and distinct variety of roseplant of the hybrid tea class which was originated by crossing anunnamed variety with an unnamed variety.

The primary objective of this breeding was to produce a new rose varietyin the hybrid tea class possessing bright orange color, vigor, continualblooming and some disease resistance. This objective was substantiallyachieved along with other desirable improvements as evidenced by thefollowing unique combination of characteristics which are outstanding inthe new variety and which distinguish it from its parents as well asfrom all other varieties of which I am aware:

1. A bright, orange-red color with a pale reverse;

2. Mildew resistance;

3. Continual blooming;

4. Vigorous upright plant; and

5. Thick petals.

Asexual reproduction of this new variety by budding, as performed atWasco, Calif., shows that the foregoing characteristics and distinctionscome true to form and are established and transmitted through succeedingpropagations.

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is reasonablypossible to make the same in a color illustration of this character.

The following is a detailed description of my new rose cultivar withcolor in terminology in accordance with The Royal Horticultural SocietyColour Chart except where ordinary dictionary significance of color isindicated:

Parentage:

Seed parent.--Unnamed variety.

Pollen parent.--Unnamed variety.

Classification:

Botanical.--Rosa hybrid.

Commercial.--Hybrid tea.

FLOWER

Observations made from specimens grown in a greenhouse at Irvine, Calif.in September, 1986.

Blooming habit: Continuous.

Bud:

Size.--11/2"-2" when petals start to unfurl.

Form.--Long, pointed ovoid.

Color.--When sepals first divide, red Group 44A at the bud tip, slowlyturning to yellow at the base (Yellow Group 10A); when half blown, upperside of petals Red Group 44A; lower side of petals Yellow Group 5C atthe petal base to halfway up the petal where it turns to pale orange(Orange Group 32D).

Sepals.--Color: Green Group 138A. Three appendaged sepals lightlyappendaged. Two unappendaged sepals hairy edged.

Receptacle.--Color: Green Group 138A. Shape: Funnel. Size: Medium.Surface: Smooth.

Peduncle.--Length: Short. Surface: Smooth, glandular. Color: Mediumgreen. Strength: Stiff.

Open bloom:

Size.--Large. Average open size 5".

Borne.--Singly.

Stems.--Long to medium, strong.

Form.--When first open, High center. Permanence: Flattens slightly andouter petals curl back; outer petal edges slightly curled.

Petalage.--Number of petals under normal conditions: 24-28.

Color.--Center of flower: Upper side of petals, Red Group 44A; reverseside of petals, Yellow Group 5C at the petal base, to halfway up thepetal where it turns a pale orange (Orange Group 32D. Base of petals,Yellow Group 10A on upper side, Yellow Group 5C on lower side. Majorcolor: Red Group 44A.

Variegations.--None.

Discoloration.--General tonality at end of first day: None. Third day: Aslight darkening.

Fragrance.--Slight.

Petals:

Texture.--Thick.

Shape.--Obovate.

Form.--Tips slightly recurved.

Arrangement.--Imbricated. Petaloids in center, few.

Persistence.--Drop off cleanly.

Lastingness.--On the plant, long. As cut flower, long.

Reproductive parts:

Anthers.--Medium. Color: Yellow edged in red. Arrangement: Regulararound styles.

Filaments.--Color: Reddish brown.

Pollen.--Lemon yellow.

Styles.--Color: Red.

Stigmas.--Color: Greenish white.

PLANT

Form: Bush.

Growth: Vigorous.

Foliage: Number of leaflets on normal mid-stem leaves: 5.

Size.--Large.

Quantity.--Normal.

Color.--New foliage: Reddish. Old foliage: Dark glossy green.

Leaflets:

Shape.--Oval pointed.

Texture.--Glossy.

Edge.--Serrated.

Serration.--Single, small.

Petiole.--Rachis: Color: Reddish. Underside: Smooth with prickles.

Stipules.--Short, smooth with glands.

Disease resistance.--Resistant to mildew, under normal growingconditions at Irvine, Calif.

Wood:

New wood.--Color: Reddish. Bark: Smooth.

Old wood.--Color: Green. Bark: Smooth.

Prickles:

Quantity.--On main canes from base: Ordinary. On laterals from maincanes: Ordinary.

Form.--Medium, hooked downward.

Color when young.--Red.

Small prickles:

Quantity.--On main stalks, none. On laterals, none.

I claim:
 1. A new and distinct variety of rose plant of the hybrid teaclass, substantially as herein shown and described, characterizedparticularly as to novelty by the unique combination of thick, highsubstance petals of unusual orange-red color with a pale yellow andorange reverse combined with mildew resistance, outstanding vigor andcontinual blooming.